Improvement in sash-holders



GEORGE N KENDALL Improvement in Sash-Hoiders.

N0. 114,445. Patented May2,1871.

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Letters Patent No. 114,445, dated May 2, 1871.,

IMPROVEMENT IN SASH-HOLDERS.

The Schedule referred to in these Letters Patent and making part of the same.

and the same article a fastening or locking-bolt to keep a window-sash immovable up or down when desired, and a friction pressure-piece bearing against the casing to counterbalance or support the sash, in lieu of weights, at any point desired.

My invention consists in the hereinafter method of arranging, combining, and operating a fastening-bolt and an elastic cushion of suitable material, the former operating to lock the sash shut, and at such other points as may be provided for, the latter to support the sash at any position more or less open. answering in place of weights and pulleys. v

Figure 1 represents a front view of sash having my lock and support applied.

Figure'2, an enlarged view of a portion or the sash detached, and the front plate of catch removed, exhibiting the parts beneath.

Figure 3, a view of the edge of the sash that faces the jarnb-casing, presenting the friction-cushion, lyin in a recess prepared for it in the sash.

Figure 4, two of the flictiomcnshions, one having a plane smooth surface for bearing against the jambcasing, the other a roughened or fluted bearing surface. Either of these forms of face is good and operative.

Letter A, jamb-c'asing, upon the two opposing inner :iertical face surfaces of which the sash moves up and own.

B, the window-sash in position to be held from delsounding by cushion, shown in this, fig. 1, by dotted mes.

G, a recess out in theface ofthe sash for ther'eception of the working parts of the catch.

1), face-plate covering the working parts.

E, catch-bolt, semi-circular in extension, the lower end adapted to enter a hole in the jamb-casing, as fig. 2 illustrates, thus locking the sash.

F, a wedge-shaped block of rubber, or other suitable material, lying in a recess formed in the edge of the sash, as in fig. 3, and, .by pressure against thehjamb-casing, counterbalancing the weight of the sas G, thumb-knob, by which the bolt E and cushion F are bronght'into active application, or disengaged.

H, a slot cut through the face-plate D, in form as represented in the drawing. V

- In this slot the spindle of the knob G traverses, as more fully explained in the description of the mode of operation.

1, screws securing the plate D in position.

J, thin smooth metal facing on the inner side of block or cushion F, to lessen the friction on the incline K as the said block moves up and down uponit, as hereinafter explained.

K, the bottom of recess in which lies the cushion F. This, as it continues from the recess in which the bolt E lies, inclines outward or toward the casing, so a depression of the sash will carry the said wedgeshaped friction-block outward against the casing, 00- casioning suificient pressure and friction against the casing to support the sash.

In operation mydevice is as follows:

When the sash is down the knob G is moved casing and the lower end of the .bolt E will'be with-;

drawn from its recess, and the sash may be moved up or down, as the case may be; and as the upper end of bolt E attaches to the base of friction-block F the said block is pressed against thejamh, and the sash, on being left to-itself, in its tendency to descend, carries the friction-block F more forcibly against the casing, through the agency of the inclined mirror-face of the recess in which it (E) lies.

To allow the sash to be moved up or down, the band would carry.the knob G over the bend or angle of the slot H, and neither the bolt E nor friction-piece F would be engaged.

From this description it appears that the catch-- boltE serves to lock either upper or lower sash in definite positions, and the friction-block F takes the place of weights, and supports or retains the sash, upper or IOWGBJD any position in which it happens to beleft.. I

I have represented the block F as having a round hole .near its wide end to receive the upper end of tionsl stop, all arranged and combined substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing v witnesses.

"GEO. N. KENDALL.

Witnesses:

' J. H. CARR,

S. It. Bnmrcrz. 

